Operating information
| Service name | tradeanderror |
|---|---|
| Form of operation | Sole proprietorship (個人事業) |
| Operator | Kazuma Sasaki (佐々木 一真) |
| Address | Aoyama Marutake Bldg. 6F, 3-1-36 Minami-Aoyama, Minato-ku, Tokyo 107-0062, Japan |
| Contact | Please use the contact form |
| Business | Planning, development, and operation of web/mobile applications that help traders review and learn from FX, equity, and crypto trading. |
| Started | 2025 (beta opened 2026) |
| Domain | tradeanderror.com |
What we believe about the product
Inconsistent results, broken rules, the same mistake costing the same pips week after week — those decision habits aren't visible in static-image backtests. Backtests pause; the market doesn't.
That's why we put everything into recording the moment of the trade and letting you grade your own clip. Less feature surface, more attention to the experience that actually pulls a trader back the next week.
Why a sole proprietorship
Because we want zero distance between the user and the person making decisions. Feature requests get answered by the same person who builds them. Bugs get fixed by the same person who shipped them. Pricing decisions are made the same way. Nothing routes through a committee, which lets us respond quickly and follow user feedback closely.
If growth makes incorporation the right structure, this page will reflect that change clearly.
Compliance
- The Japanese Specified Commercial Transactions Act disclosure is on this page.
- How we handle personal data is detailed in our privacy policy.
- tradeanderror does not guarantee any outcome from FX or other financial trading. Final trading decisions are the user's own.
Reach out anytime
Product feedback, feature requests, press inquiries, partnership conversations — all welcome. Replies come from a real person, in the order they arrive.
Open contact form →